Hyperbaric Oxygen Therapy for Compromised Skin Grafts and Flaps
Skin grafts and surgical flaps are commonly used to repair wounds, reconstruct tissue, and restore function following trauma, surgery, or cancer treatment. While many grafts and flaps heal successfully, some become compromised due to reduced blood flow, infection, or swelling. In these situations, Hyperbaric Oxygen Therapy (HBOT) may be used as an adjunctive treatment to improve tissue survival and support healing. HBOT enhances oxygen delivery to transplanted tissue, helping to stabilise at-risk grafts and flaps and reduce the likelihood of failure.
Understanding Compromised Grafts and Flaps
A skin graft involves transferring skin without its own blood supply, relying on the recipient site to revascularise the tissue. A flap, by contrast, is moved with its own blood vessels intact. Both procedures depend heavily on adequate oxygenation and circulation during the early stages of healing. Compromise may occur when blood flow is restricted or disrupted. Contributing factors can include swelling, venous congestion, trauma to the surgical site, infection, smoking, diabetes, or previous radiation therapy. Early signs of compromise may include colour changes, increased pain, slow healing, or partial tissue breakdown.
How HBOT Supports Graft and Flap Survival
Hyperbaric Oxygen Therapy addresses several of the underlying challenges that threaten transplanted tissue. Key Benefits of HBOT 1. Enhances Oxygen Delivery to Ischaemic Tissue HBOT increases the amount of oxygen dissolved in the blood, allowing oxygen to reach grafts and flaps even when circulation is impaired. 2. Reduces Tissue Swelling The pressurised environment helps decrease oedema, improving microcirculation and venous outflow. 3. Promotes Revascularisation HBOT supports the formation of new blood vessels, which is essential for long-term graft and flap survival. 4. Supports Infection Control and Healing Improved oxygen levels enhance immune function and support collagen production and wound repair.
HBOT as an Adjunct to Surgical Care
HBOT is not used routinely for all grafts or flaps. It is typically introduced when there are signs of compromise or in high-risk cases where tissue viability is uncertain. Treatment is coordinated with the surgical team and may be used before or after corrective procedures. Sessions are usually delivered over several days or weeks, depending on the severity of compromise and the tissue’s response to therapy.
Use of HBOT in the UK
In the UK, patients with compromised grafts or flaps may be referred to accredited hyperbaric centres by plastic surgeons, reconstructive surgeons, or wound care specialists. Treatment is delivered under specialist supervision, following recognised clinical indications and safety protocols.
Clinical Outcomes and Recovery
When used appropriately, HBOT may help achieve:
- Improved graft and flap survival
- Reduced tissue loss
- Faster wound healing
- Lower infection risk
- Better functional and cosmetic outcomes
The effectiveness of HBOT is greatest when introduced early, alongside careful surgical assessment and wound management.
FAQs About Compromised Grafts, Flaps, and HBOT
In many cases, HBOT can improve oxygenation and circulation, helping stabilise compromised tissue and prevent further deterioration.
HBOT may be considered in high-risk cases, but it is most commonly used when early signs of compromise appear.
No. HBOT supports healing but does not replace the need for surgical assessment or corrective procedures if required.
Treatment courses vary depending on the extent of compromise and response to therapy.
Yes. When appropriately indicated and medically supervised, HBOT is considered safe following reconstructive procedures.
Conclusion
The survival of skin grafts and surgical flaps depends on timely revascularisation and adequate oxygen supply. When these processes are compromised, Hyperbaric Oxygen Therapy offers valuable support by improving tissue oxygenation, reducing swelling, and promoting healing. Used as part of a multidisciplinary care approach, HBOT can significantly improve outcomes for patients with at-risk or compromised transplanted tissue.